Springwatch: Sealife

Kate Humble presents a celebration of the UK's surprising and beautiful marine life and takes an in-depth look at the issues affecting our coastal waters. From Cornwall to Scotland she reveals breathtaking marine animals - dolphins, otters, and colourful local fish that look almost tropical. Kate gets wet, too, when she swims with Britain's biggest fish - the huge but gentle basking shark, and finds out what we can all do to help conserve and enjoy this wildlife.